Soil should also be tested for its pH level, a measure of the acid and alkaline balance.

VOA: special.2009.06.09

An astronomer at Harvard College, Henrietta Leavitt, had discovered that these periods of brightness could be used to measure the star's distance from Earth.

VOA: special.2009.04.29

It will be able to measure small amounts of many different gases.

VOA: special.2009.12.30

Until the measure becomes law, medical testing on chimpanzees will continue to be a highly divisive, and hotly debated,issue.

VOA: standard.2010.02.16

But the measure has stalled in the Senate. McKibben believes that,ultimately, a price must be put on carbon.

VOA: standard.2010.04.21

The effect of a disease - or a condition like obesity - can be tallied by a measure called quality-adjusted life years lost.

VOA: standard.2010.08.10

The measure then would have to be reconciled with the House-passed legislation before a final bill is sent to President Obama for his signature.

VOA: standard.2009.05.20

Democrats and Republicans continue to argue what the true longer-term costs will be, with 10-year costs of the House measure put at more than $1 trillion.

VOA: standard.2009.12.25

But many analysts also say that may be a temporary situation, because they don't expect the measure to be taken up by the full House of Representatives.

VOA: standard.2010.03.19

The White House has declared the unemployment bill an emergency measure, meaning it does not have to be offset by spending cuts in other areas of the federal budget.

VOA: standard.2010.07.19

"The measure of success in Afghanistan will be that British forces can come home because Afghan forces are able to deal with the security problems of their country themselves,".

VOA: standard.2009.11.04

But before any bill can become law, the Senate must pass its version, the House and Senate bills must be reconciled and that final measure must be signed by the President.

VOA: standard.2010.02.25

A representative who co-sponsored the measure described body scans as a "virtual strip search" that the American public should not be subjected to, and suggested using explosives-sniffing dogs as a less-invasive method of detection.

VOA: standard.2009.12.30

Senate Foreign Relations Committee Chairman John Kerry said after meeting the Pakistani envoy that the legislation does not need to be changed but that Qureshi would get written clarifications of terms of the measure he said have been inaccurately characterized by some quarters.

VOA: standard.2009.10.13